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4042111 is a prime number
BaseRepresentation
bin1111011010110101111111
321121100201211
433122311333
52013321421
6222345251
746233403
oct17326577
97540654
104042111
112310997
12142b227
13ab6aa8
14773103
1554c9e1
hex3dad7f

4042111 has 2 divisors, whose sum is σ = 4042112. Its totient is φ = 4042110.

The previous prime is 4042097. The next prime is 4042153. The reversal of 4042111 is 1112404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4042111 - 29 = 4041599 is a prime.

It is a super-2 number, since 2×40421112 = 32677322672642, which contains 22 as substring.

It is the 2011-st Hogben number.

It is a junction number, because it is equal to n+sod(n) for n = 4042091 and 4042100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4042211) by changing a digit.

It is a nontrivial repunit in base 2010.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021055 + 2021056.

It is an arithmetic number, because the mean of its divisors is an integer number (2021056).

Almost surely, 24042111 is an apocalyptic number.

4042111 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042111 is an equidigital number, since it uses as much as digits as its factorization.

4042111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 4042111 is about 2010.5001865208. The cubic root of 4042111 is about 159.2952204065.

Adding to 4042111 its reverse (1112404), we get a palindrome (5154515).

The spelling of 4042111 in words is "four million, forty-two thousand, one hundred eleven".